20 Most Recent 1999 Cadillac DeVille - Page 9 Questions & Answers

Check your oil dats da only other solution to this problem your car might be burning oil and cause it to run hot

Does the vehicle have auto headlights? if you can manually change the headlight setting to manual check and see if the ligHts still go out. if it does the same thing I would think the sensor is bad. it's

I seriously doubt that it IS vaporlocked ... check fuel pressure and you'll probably find that it's too low.

in the fuse box and there are more than one. if there at all, (options)

I know it sounds vague, but with so little info, look at fuses. Sometimes a fuse will blow with age, but most times it's a short. It's best to buy one of those fuse testers as it's not always easy to see if one of the plug in type is blown.

Check for blown bulb or fuse.

Does the AC system show normal pressure readings and maintains at least 28-32 PSI on the low side charging port?

On a cadillac deville in the front door.an in the Seville it's in the b-pillar above seatbelt retractor.

I can't advise on the type of coolant additive (I don't know your model) but in general if the coolant level is OK already then the additive won't explain this overheating. It could be - head gasket leak to the coolant jacket. There is a cheap test a mechanic can do for combustion gases in the coolant - faulty temperature sensor unit -slipping drive belt to the fan (if fitted) - thermostat stuck closed

if you have a key try to lock then unlock door before you get in this tells computer you have key and might work the remote turns it on and off maybe try a shop that installs remote starts ask for a universial remote or google 99 deville fuse diagram hope this helps good luck

Yes, it should reset the memory, I know it does on my deville, so it should be the same on an eldorado.

Try on the front of vehicle behind the front impact bar. Also try on the right front of the engine compartment, behind battery.

sound like a bad heater core! the heater core is like a small radiator that is usually locaded in the dashboard on the passenger side. now if the leaking is really bad you are going to see water dripping by the front passenger tire or if it gets really bad it may leak inside the car. in order to fix this problem the HEATER CORE must be replaced. good luck

Your heater core is broke.

I think work per hour 85.00 to 100.00 plus cost of alternator 100.00 or more.

there"s a black steering wheel cover under the hood try tapping it real good and it should come back on if its not the fuse's